211143113430 has 32 divisors (see below), whose sum is σ = 508007200608. Its totient is φ = 56164416000.

The previous prime is 211143113429. The next prime is 211143113473. The reversal of 211143113430 is 34311341112.

It is a happy number.

211143113430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211143113430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8763661 + ... + 8787720.

It is an arithmetic number, because the mean of its divisors is an integer number (15875225019).

Almost surely, 2^211143113430 is an apocalyptic number.

211143113430 is an abundant number, since it is smaller than the sum of its proper divisors (296864087178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211143113430 is a wasteful number, since it uses less digits than its factorization.

211143113430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551792.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211143113430 its reverse (34311341112), we get a palindrome (245454454542).

The spelling of 211143113430 in words is "two hundred eleven billion, one hundred forty-three million, one hundred thirteen thousand, four hundred thirty".